The Evolution of Mind. 255 



system and no material out of which to build it. 

 Granted that the organized sensibility of man re- 

 gisters with exactness the invariable sequences in 

 its environment, granted also that philosophy can 

 correctly decipher the inconceivably complicated re- 

 cord, the validity of the testimony is, as we have seen, 

 narrowed to the physical surroundings of the organism, 

 and has no meaning beyond that range. Take out of 

 Mr. Spencer's philosophy every proposition affirmative 

 of any fact except such facts as are vital to the con- 

 tinuance of man as a living organism ; narrow it 

 strictly to its own field its only possible field and his 

 system, so vast and so elaborate, will shrink into a few 

 truths in physics and physiology. 



To grant the evolutionist his own first principles is >. 

 the destruction of his hypothesis. In truth, evolu- 

 tionism is a parasitic growth living on the sap of 

 more vigorous organisms. Deprive it of this stolen 

 nutriment and it dies. 



SECTION VIII. 



THE CORRELATION OF MENTAL AND PHYSICAL FORCES. 



To bring the activity of mind within a universal 

 law of physical change, it is necessary to establish 

 the correlation of every exercise of mental power 

 with the forces of the material universe. No one 

 -will seriously dispute that there is a relation subsist- 



